CN203850221U - Electromagnetic relay coil frame - Google Patents
Electromagnetic relay coil frame Download PDFInfo
- Publication number
- CN203850221U CN203850221U CN201420249034.XU CN201420249034U CN203850221U CN 203850221 U CN203850221 U CN 203850221U CN 201420249034 U CN201420249034 U CN 201420249034U CN 203850221 U CN203850221 U CN 203850221U
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- mold insert
- mould mold
- lateral opening
- coil frame
- electromagnetic relay
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Abstract
The utility model discloses an electromagnetic relay coil frame, which comprises a coil frame body. a terminal hole for mounting a coil terminal is arranged in the coil frame body, the terminal hole has a semi-blind hole structure, the semi-blind hole structure is composed of a main hole in a cylinder shape, a surface entity in a cylinder shape and at least two edge holes, the surface entity and the main hole have the same diameter, the surface entity is connected onto one end of the main hole so as to seal the opening at the end of the main hole, the at least two edge holes surround the periphery of the surface entity and are contacted with the periphery of the surface entity, one end of each edge hole is communicated with the outside, and the other end of the edge hole is connected with the periphery of the main hole to enable the edge hole and the main hole to be communicated. According to the electromagnetic relay coil frame, the corresponding size precision of the coil frame terminal hole can be improved, and defects that flocks generated when the coil terminal is plugged enter the relay to result in pollution can be avoided.
Description
Technical field
The utility model relates to a kind of electromagnetic relay, particularly relates to a kind of electromagnetic relay coil frame that can plug-in mounting coil terminals.
Background technology
Current, along with the raising of living standards of the people, the application of the household electrical appliance such as colour TV, air-conditioning, refrigerator, washing machine, water heater, soy bean milk making machine is more prevalent, and has the trend of progressively promoting to the region such as samll cities and towns and rural area; At the developed countries such as North America, West Europe, except above-mentioned general household electrical appliance, the high-grade household electrical appliance such as automatic dish-washing machine, electric heat mat, electronic masseur have also stepped into common family substantially.
Along with present science and technology is constantly progressive, household electrical appliances manufacturer is for enhancing productivity, electronic devices and components are carried out to automatic mechanical hand assembling, the components and parts such as relay are inserted in circuit board, but because relay pin production process exists necessarily crooked, in the time assembling, some relay just can not be good is inserted in circuit board in manufacturer, causes failure welding, and the serious whole circuit board that makes is scrapped.
The terminal hole of the bobbin of existing product has two kinds of through-hole structure and blind hole structures, and corresponding is to adopt two kinds of mould structures to be made.
Fig. 1 is the Mold Making structural representation of prior art bobbin through-hole structure, Fig. 2 is the Mold Making partial schematic sectional view of prior art bobbin through-hole structure, Fig. 3 is the coil holder structure schematic diagram of prior art through-hole structure, Fig. 4 is the coil holder structure cross-sectional schematic of prior art through-hole structure, and Fig. 5 is the A portion enlarged diagram in Fig. 4.As shown in Figures 1 to 5, while making bobbin through-hole structure, be to adopt upper mould mold insert 11 and lower mould mold insert 12, the fuse 121 of lower mould mold insert 12 is that immediate roof is in the recess of upper mould mold insert 11, the terminal hole 13 that is used for assembling coil terminals in bobbin 10 is through-hole structure, this structure terminal relative position dimensional accuracy is high, but because terminal hole 13 is through holes, in coil terminals plug-in mounting process, easily produce soft flocks, cause relay internal environment to pollute, cause not conducting of product to lose efficacy.
Fig. 6 is the Mold Making structural representation of prior art bobbin blind hole structure, Fig. 7 is the Mold Making partial schematic sectional view of prior art bobbin blind hole structure, Fig. 8 is the coil holder structure schematic diagram of prior art blind hole structure, Fig. 9 is the coil holder structure cross-sectional schematic of prior art blind hole structure, and Figure 10 is the B portion enlarged diagram in Fig. 9.As shown in Fig. 6 to Figure 10, while making bobbin blind hole structure, be to adopt upper mould mold insert 21 and lower mould mold insert 22, the fuse 221 of lower mould mold insert 22 does not have top in the recess of upper mould mold insert 21, the terminal hole 23 that is used for assembling coil terminals in bobbin 20 is total blindness's pore structure, this structure is not located completely because of the fuse 221 of mould, in injection moulding process, fuse 221 easily causes crooked, cause the terminal hole 23 of bobbin to misplace, terminal hole 23 packs into after coil terminals, coil terminals relative size precision is low, cause relay finished product pin crooked, manufacturer causes failure welding while use, circuit board is scrapped.
Utility model content
The purpose of this utility model is to overcome the deficiency of prior art, a kind of electromagnetic relay coil frame is provided, can improve the relative size precision of bobbin terminal hole, can avoid again coil terminals in plug-in mounting process, to produce soft flocks and enter the drawback that relay inside pollutes.
The utility model solves the technical scheme that its technical problem adopts: a kind of electromagnetic relay coil frame, comprise bobbin body, and in bobbin body, be provided with the terminal hole for coil terminals is installed, described terminal hole is half-blind hole structure; Described half-blind hole structure is made up of the lateral opening of the top layer entity of the main aperture of cylindrical shape, cylindrical shape and at least two, one end that top layer entity is connected to main aperture is with this end opening of sealing main aperture, and at least two lateral opening is looped around the periphery of described top layer entity and communicates with main aperture.
Described top layer entity is identical with the diameter of described main aperture, described at least two lateral opening is looped around the periphery of described top layer entity and contacts with the periphery of described top layer entity, lateral opening one end and exterior, the lateral opening other end and the periphery of main aperture join and make to be lateral openingly connected with main aperture.
Described at least two lateral opening is even shape and is looped around the periphery of described top layer entity.
Described half-blind hole structure is mutually to inlaying and adopting injection molding to be made by upper mould mold insert and lower mould mold insert, the upper end of this lower mould mold insert is the thimble insert structure of prior art, the lower end of this upper mould mold insert is provided with at least two from bottom surface to claw downward-extension and that can hold the side face of described thimble insert structure tightly, in the time that lower mould mold insert matches with upper mould mold insert, the side face of thimble insert structure contacts with claw, and the bottom surface of the end face of thimble insert structure and upper mould mold insert is provided with preset gap; After injection mo(u)lding, claw place forms described lateral opening, and gap location forms described top layer entity.
Described lateral opening be four.
Described lateral opening be three.
Described lateral opening be two.
A kind of electromagnetic relay coil frame of the present utility model, in manufacturing process, comprising:
Select to make upper mould mold insert and the lower mould mold insert of terminal hole, the upper end of lower mould mold insert is the thimble insert structure of prior art, the lower end of upper mould mold insert be provided with at least two from bottom surface the jaw structure to the side face that can hold described thimble insert structure tightly of downward-extension;
In the process of splicing in bobbin unitary mould, together with the lower end of upper mould mold insert being set in the upper end of lower mould mold insert simultaneously, make the jaw structure of upper mould mold insert hold the side face at thimble insert structure tightly, and retain certain interval between the end face of thimble insert structure and the bottom surface of upper mould mold insert;
In bobbin unitary mould injection moulding process, the matching part of upper mould mold insert and lower mould mold insert is carried out to injection process simultaneously, make the matching part of injected plastics material coating mould patrix mold insert and lower mould mold insert and fill described gap;
After moulding, in the time removing bobbin unitary mould, also remove described upper mould mold insert and lower mould mold insert, obtain bobbin.
Described jaw structure adopts four, and four jaw structures are evenly distributed on the periphery of thimble insert structure.
Described jaw structure adopts three, and three jaw structures are evenly distributed on the periphery of thimble insert structure.
A kind of electromagnetic relay coil frame of the present utility model, combine the advantage of prior art through-hole structure bobbin and blind hole structure bobbin, bobbin terminal hole adopts half-blind hole structure, lower mould mold insert adopts conventional thimble insert structure, upper mould mold insert adopts jaw structure, coordinate with thimble mold insert, hold thimble mold insert tightly, realize the half-blind hole design of bobbin.In the time of upper mould mold insert and the cooperation of lower mould mold insert, between mold insert, do not contact, leave certain interval, position by the claw side of surrounding, in the time of injection mo(u)lding, gap is by filling plastic like this, and coil end face can form half-blind hole.Jaw structure can be not limited to concrete shape, can carry out different designs according to structure, and the quantity of jaw structure should be at least two, such as two pawls, three-jaw, four paws or multijaw more, all can realize effective location, but a pawl just can not be realized effective location, preferably three-jaw and four paws.Such half-blind hole design moulding, dimensional accuracy is high, and in coil terminals plug-in mounting process, the soft flocks of generation all remains in terminal hole simultaneously, can not use and cause soft flocks to drop out because of the turnover of product, causes interiors of products environmental pollution, causes relay to lose efficacy.
Compared with prior art, the beneficial effects of the utility model are:
1, because terminal hole of the present utility model is half-blind hole structure, this half-blind hole structure is mutually to inlaying and adopting injection molding to be made by upper mould mold insert and lower mould mold insert, the upper end of this lower mould mold insert is the thimble insert structure of prior art, the lower end of this upper mould mold insert be provided with at least two outward extending and can hold the claw of the side face of described thimble insert structure tightly from end face, like this, can realize the effective location of thimble insert structure (being fuse), thereby improve the relative size precision of terminal hole, preferably resolve prior art relay coil pin skew problem,
2, because terminal hole of the present utility model is half-blind hole structure, half-blind hole structure is made up of the lateral opening of the top layer entity of the main aperture of cylindrical shape, cylindrical shape and at least two, utilize top layer entity to retain the advantage of prior art blind hole, the soft flocks that plug-in mounting coil terminals is produced is stayed in bobbin terminal hole, pollutes thereby reduce relay internal environment;
3, mould structure ensures precision, and coil holder is easily manufactured, dimensionally stable.
Below in conjunction with drawings and Examples, the utility model is described in further detail; But a kind of electromagnetic relay coil frame of the present utility model is not limited to embodiment.
Brief description of the drawings
Fig. 1 is the Mold Making structural representation of prior art bobbin through-hole structure;
Fig. 2 is the Mold Making partial schematic sectional view of prior art bobbin through-hole structure;
Fig. 3 is the coil holder structure schematic diagram of prior art through-hole structure;
Fig. 4 is the coil holder structure cross-sectional schematic of prior art through-hole structure;
Fig. 5 is the A portion enlarged diagram in Fig. 4;
Fig. 6 is the Mold Making structural representation of prior art bobbin blind hole structure;
Fig. 7 is the Mold Making partial schematic sectional view of prior art bobbin blind hole structure;
Fig. 8 is the coil holder structure schematic diagram of prior art blind hole structure;
Fig. 9 is the coil holder structure cross-sectional schematic of prior art blind hole structure;
Figure 10 is the B portion enlarged diagram in Fig. 9;
Figure 11 is the Mold Making structural representation of bobbin half-blind hole structure of the present utility model;
Figure 12 is the structural representation one of bobbin of the present utility model;
Figure 13 is the structural representation two of bobbin of the present utility model;
Figure 14 is the cutaway view along the C-C line in Figure 13;
Figure 15 is the D portion enlarged diagram in Figure 14;
Figure 16 is the cooperation schematic diagram of upper mould mold insert of the present utility model and lower mould mold insert;
Figure 17 is the E portion enlarged diagram in Figure 16;
Figure 18 is the structural representation of upper mould mold insert of the present utility model.
Embodiment
Embodiment
Referring to shown in Figure 11 to Figure 18, a kind of electromagnetic relay coil frame of the present utility model, comprises bobbin body 30, is provided with the terminal hole 3 for coil terminals is installed in bobbin body, and described terminal hole 3 is half-blind hole structure.
Described half-blind hole structure is made up of the top layer entity 32 of the main aperture 31 of cylindrical shape, cylindrical shape and four lateral opening 33, described top layer entity 32 is identical with the diameter of described main aperture 31, and top layer entity 32 is connected to one end of main aperture 31 with this end opening of sealing main aperture, described four lateral opening 33 are looped around the periphery of described top layer entity 32 and contact with the periphery of described top layer entity 32, one end of lateral opening 33 and exterior, lateral opening 33 the other end joins and makes lateral opening 33 to be connected with main aperture 31 with the periphery of main aperture 31.
Described four lateral opening 33 peripheries that are even shape and are looped around described top layer entity 32.
Described half-blind hole structure 3 is mutually to inlaying and adopting injection molding to be made by upper mould mold insert 4 and lower mould mold insert 5, the upper end of this lower mould mold insert 5 is the thimble insert structure 51 of prior art, the lower end of this upper mould mold insert 4 be provided with four from bottom surface the claw 41 to side face downward-extension and that can hold described thimble insert structure tightly, in the time that lower mould mold insert 5 matches with upper mould mold insert 4, the side face of thimble insert structure 51 contacts with four claws 41, the bottom surface of the end face of thimble insert structure 51 and upper mould mold insert 4 is provided with preset gap 50, after injection mo(u)lding, claw 41 places form described lateral opening 33, and 50 places, gap form described top layer entity 32.
The lateral opening of the present embodiment is four, certainly, can be also two, three or more.
A kind of electromagnetic relay coil frame of the present utility model, in manufacturing process, comprising:
Select to make upper mould mold insert 4 and the lower mould mold insert 5 of terminal hole, the upper end of lower mould mold insert 5 is the thimble insert structure 51 of prior art, the lower end of upper mould mold insert be provided with four from bottom surface the jaw structure 41 to the side face that can hold described thimble insert structure tightly of downward-extension;
In the process of splicing in bobbin unitary mould, together with the lower end of upper mould mold insert 4 being set in the upper end of lower mould mold insert 5 simultaneously, make the jaw structure 41 of upper mould mold insert hold the side face at thimble insert structure 51 tightly, and retain certain interval 50 between the end face of thimble insert structure 51 and the bottom surface of upper mould mold insert 4;
In bobbin unitary mould injection moulding process, the matching part of upper mould mold insert 4 and lower mould mold insert 5 is carried out to injection process simultaneously, make the matching part of injected plastics material coating mould patrix mold insert and lower mould mold insert and fill described gap;
After moulding, in the time removing bobbin unitary mould, also remove described upper mould mold insert and lower mould mold insert, obtain bobbin 30.
The jaw structure of the present embodiment adopts four, and four jaw structures are evenly distributed on the periphery of thimble insert structure; Certainly, jaw structure also can adopt two, three or more, and two, three or more jaw structures are evenly distributed on the periphery of thimble insert structure.
A kind of electromagnetic relay coil frame of the present utility model, combine the advantage of prior art through-hole structure bobbin and blind hole structure bobbin, bobbin terminal hole adopts half-blind hole structure 3, lower mould mold insert 5 adopts conventional thimble insert structure, upper mould mold insert 4 adopts jaw structure 41, coordinate with thimble mold insert, hold thimble mold insert tightly, realize the half-blind hole design of bobbin.In the time that upper mould mold insert 4 and lower mould mold insert 5 coordinate, between mold insert, do not contact, leave certain interval, position by the claw side of surrounding, in the time of injection mo(u)lding, gap is by filling plastic like this, and coil end face can form half-blind hole.Jaw structure can be not limited to concrete shape, can carry out different designs according to structure, the quantity of jaw structure should be at least two, such as two pawls, three-jaw, four paws or multijaw more, all can realize effective location, but a pawl just can not be realized effective location, and the present embodiment, as preference, has adopted four paws.Such half-blind hole design moulding, dimensional accuracy is high, and in coil terminals plug-in mounting process, the soft flocks of generation all remains in terminal hole simultaneously, can not use and cause soft flocks to drop out because of the turnover of product, causes interiors of products environmental pollution, causes relay to lose efficacy.
Above-described embodiment is only used for further illustrating a kind of electromagnetic relay coil frame of the present utility model; but the utility model is not limited to embodiment; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all fall in the protection range of technical solutions of the utility model.
Claims (7)
1. an electromagnetic relay coil frame, is characterized in that: comprise bobbin body, be provided with the terminal hole for coil terminals is installed in bobbin body, described terminal hole is half-blind hole structure; Described half-blind hole structure is made up of the lateral opening of the top layer entity of the main aperture of cylindrical shape, cylindrical shape and at least two, one end that top layer entity is connected to main aperture is with this end opening of sealing main aperture, and at least two lateral opening is looped around the periphery of described top layer entity and communicates with main aperture.
2. electromagnetic relay coil frame according to claim 1, it is characterized in that: described top layer entity is identical with the diameter of described main aperture, described at least two lateral opening is looped around the periphery of described top layer entity and contacts with the periphery of described top layer entity, lateral opening one end and exterior, the lateral opening other end and the periphery of main aperture join and make to be lateral openingly connected with main aperture.
3. electromagnetic relay coil frame according to claim 1 and 2, is characterized in that: described at least two lateral opening is even shape and is looped around the periphery of described top layer entity.
4. electromagnetic relay coil frame according to claim 1, it is characterized in that: described half-blind hole structure is mutually to inlaying and adopting injection molding to be made by upper mould mold insert and lower mould mold insert, the upper end of this lower mould mold insert is the thimble insert structure of prior art, the lower end of this upper mould mold insert is provided with at least two from bottom surface to claw downward-extension and that can hold the side face of described thimble insert structure tightly, in the time that lower mould mold insert matches with upper mould mold insert, the side face of thimble insert structure contacts with claw, the bottom surface of the end face of thimble insert structure and upper mould mold insert is provided with preset gap, after injection mo(u)lding, claw place forms described lateral opening, and gap location forms described top layer entity.
5. electromagnetic relay coil frame according to claim 1, is characterized in that: described lateral opening be four.
6. electromagnetic relay coil frame according to claim 1, is characterized in that: described lateral opening be three.
7. electromagnetic relay coil frame according to claim 1, is characterized in that: described lateral opening be two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249034.XU CN203850221U (en) | 2014-05-15 | 2014-05-15 | Electromagnetic relay coil frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249034.XU CN203850221U (en) | 2014-05-15 | 2014-05-15 | Electromagnetic relay coil frame |
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| CN203850221U true CN203850221U (en) | 2014-09-24 |
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| CN201420249034.XU Active CN203850221U (en) | 2014-05-15 | 2014-05-15 | Electromagnetic relay coil frame |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064404A (en) * | 2014-05-15 | 2014-09-24 | 厦门宏发电声股份有限公司 | Electromagnetic relay coil support and manufacture method thereof |
| CN107833795A (en) * | 2017-10-27 | 2018-03-23 | 厦门宏发汽车电子有限公司 | A kind of electromagnetic relay of coil pin insert injection molding |
| CN108682597A (en) * | 2018-05-31 | 2018-10-19 | 厦门宏发汽车电子有限公司 | A kind of miniaturized relays can anti-soft flocks pollution quiet spring plug-in mounting structure |
-
2014
- 2014-05-15 CN CN201420249034.XU patent/CN203850221U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064404A (en) * | 2014-05-15 | 2014-09-24 | 厦门宏发电声股份有限公司 | Electromagnetic relay coil support and manufacture method thereof |
| CN104064404B (en) * | 2014-05-15 | 2017-02-08 | 厦门宏发电声股份有限公司 | Electromagnetic relay coil support and manufacture method thereof |
| CN107833795A (en) * | 2017-10-27 | 2018-03-23 | 厦门宏发汽车电子有限公司 | A kind of electromagnetic relay of coil pin insert injection molding |
| CN107833795B (en) * | 2017-10-27 | 2020-02-18 | 厦门宏发汽车电子有限公司 | Electromagnetic relay formed by injection molding of coil pin insert |
| CN108682597A (en) * | 2018-05-31 | 2018-10-19 | 厦门宏发汽车电子有限公司 | A kind of miniaturized relays can anti-soft flocks pollution quiet spring plug-in mounting structure |
| CN108682597B (en) * | 2018-05-31 | 2023-11-24 | 厦门宏发汽车电子有限公司 | Static spring plug-in mounting structure capable of resisting filth pollution of miniaturized relay |
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